diff --git a/nutils/matrix/_scipy.py b/nutils/matrix/_scipy.py
index 3c4270b05..b043f0a46 100644
--- a/nutils/matrix/_scipy.py
+++ b/nutils/matrix/_scipy.py
@@ -82,7 +82,8 @@ def mycallback(arg):
                 if callback:
                     callback(res)
                 reformat(100 * numpy.log10(max(atol, res)) / numpy.log10(atol))
-            lhs, status = solverfun(self.core, rhs, M=precon, tol=0., atol=atol, callback=mycallback, **solverargs)
+            solverargs['rtol' if scipy.version.version >= '1.12' else 'tol'] = 0.
+            lhs, status = solverfun(self.core, rhs, M=precon, atol=atol, callback=mycallback, **solverargs)
         if status != 0:
             raise Exception('status {}'.format(status))
         return lhs